[PATCH 14/15] worker: tried to move dpi functions to display channel, fail

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From: Marc-André Lureau <marcandre.lureau@xxxxxxxxx>

---
 server/display-channel.h |  74 ++++++++++++++++++++
 server/pixmap-cache.h    |   2 -
 server/red_worker.c      | 178 +++++++++++++++++++----------------------------
 server/tree.h            |  34 ---------
 4 files changed, 147 insertions(+), 141 deletions(-)

diff --git a/server/display-channel.h b/server/display-channel.h
index 5d2eee5..d8728a5 100644
--- a/server/display-channel.h
+++ b/server/display-channel.h
@@ -53,8 +53,10 @@
 #include "spice_bitmap_utils.h"
 #include "spice_image_cache.h"
 #include "utils.h"
+#include "tree.h"
 
 typedef struct DisplayChannel DisplayChannel;
+typedef struct DisplayChannelClient DisplayChannelClient;
 
 typedef struct Drawable Drawable;
 
@@ -143,6 +145,40 @@ struct Stream {
     uint32_t input_fps;
 };
 
+typedef struct DependItem {
+    Drawable *drawable;
+    RingItem ring_item;
+} DependItem;
+
+struct Drawable {
+    uint8_t refs;
+    RingItem surface_list_link;
+    RingItem list_link;
+    DrawItem tree_item;
+    Ring pipes;
+    PipeItem *pipe_item_rest;
+    uint32_t size_pipe_item_rest;
+    RedDrawable *red_drawable;
+
+    Ring glz_ring;
+
+    red_time_t creation_time;
+    int frames_count;
+    int gradual_frames_count;
+    int last_gradual_frame;
+    Stream *stream;
+    Stream *sized_stream;
+    int streamable;
+    BitmapGradualType copy_bitmap_graduality;
+    uint32_t group_id;
+    DependItem depend_items[3];
+
+    int surface_id;
+    int surfaces_dest[3];
+
+    uint32_t process_commands_generation;
+};
+
 #define STREAM_STATS
 #ifdef STREAM_STATS
 typedef struct StreamStats {
@@ -228,6 +264,30 @@ struct DisplayChannelClient {
     uint64_t streams_max_bit_rate;
 };
 
+#define DCC_TO_WORKER(dcc)                                              \
+    (SPICE_CONTAINEROF((dcc)->common.base.channel, CommonChannel, base)->worker)
+#define DCC_TO_DC(dcc) SPICE_CONTAINEROF((dcc)->common.base.channel,    \
+                                         DisplayChannel, common.base)
+#define RCC_TO_DCC(rcc) SPICE_CONTAINEROF((rcc), DisplayChannelClient, common.base)
+
+
+enum {
+    PIPE_ITEM_TYPE_DRAW = PIPE_ITEM_TYPE_COMMON_LAST,
+    PIPE_ITEM_TYPE_IMAGE,
+    PIPE_ITEM_TYPE_STREAM_CREATE,
+    PIPE_ITEM_TYPE_STREAM_CLIP,
+    PIPE_ITEM_TYPE_STREAM_DESTROY,
+    PIPE_ITEM_TYPE_UPGRADE,
+    PIPE_ITEM_TYPE_MIGRATE_DATA,
+    PIPE_ITEM_TYPE_PIXMAP_SYNC,
+    PIPE_ITEM_TYPE_PIXMAP_RESET,
+    PIPE_ITEM_TYPE_INVAL_PALETTE_CACHE,
+    PIPE_ITEM_TYPE_CREATE_SURFACE,
+    PIPE_ITEM_TYPE_DESTROY_SURFACE,
+    PIPE_ITEM_TYPE_MONITORS_CONFIG,
+    PIPE_ITEM_TYPE_STREAM_ACTIVATE_REPORT,
+};
+
 DisplayChannelClient*      dcc_new                                   (DisplayChannel *display,
                                                                       RedClient *client,
                                                                       RedsStream *stream,
@@ -237,4 +297,18 @@ DisplayChannelClient*      dcc_new                                   (DisplayCha
                                                                       uint32_t *caps,
                                                                       int num_caps);
 
+typedef struct DrawablePipeItem {
+    RingItem base;  /* link for a list of pipe items held by Drawable */
+    PipeItem dpi_pipe_item; /* link for the client's pipe itself */
+    Drawable *drawable;
+    DisplayChannelClient *dcc;
+    uint8_t refs;
+} DrawablePipeItem;
+
+DrawablePipeItem*          drawable_pipe_item_new                    (DisplayChannelClient *dcc,
+                                                                      Drawable *drawable);
+void                       drawable_pipe_item_unref                  (DrawablePipeItem *dpi);
+DrawablePipeItem*          drawable_pipe_item_ref                    (DrawablePipeItem *dpi);
+
+
 #endif /* DISPLAY_CHANNEL_H_ */
diff --git a/server/pixmap-cache.h b/server/pixmap-cache.h
index 336c9ae..a4f6fea 100644
--- a/server/pixmap-cache.h
+++ b/server/pixmap-cache.h
@@ -28,8 +28,6 @@
 #define BITS_CACHE_HASH_MASK (BITS_CACHE_HASH_SIZE - 1)
 #define BITS_CACHE_HASH_KEY(id) ((id) & BITS_CACHE_HASH_MASK)
 
-typedef struct DisplayChannelClient DisplayChannelClient;
-
 typedef struct PixmapCache PixmapCache;
 typedef struct NewCacheItem NewCacheItem;
 
diff --git a/server/red_worker.c b/server/red_worker.c
index e9ef821..e23c460 100644
--- a/server/red_worker.c
+++ b/server/red_worker.c
@@ -229,23 +229,6 @@ struct SpiceWatch {
     void *watch_func_opaque;
 };
 
-enum {
-    PIPE_ITEM_TYPE_DRAW = PIPE_ITEM_TYPE_COMMON_LAST,
-    PIPE_ITEM_TYPE_IMAGE,
-    PIPE_ITEM_TYPE_STREAM_CREATE,
-    PIPE_ITEM_TYPE_STREAM_CLIP,
-    PIPE_ITEM_TYPE_STREAM_DESTROY,
-    PIPE_ITEM_TYPE_UPGRADE,
-    PIPE_ITEM_TYPE_MIGRATE_DATA,
-    PIPE_ITEM_TYPE_PIXMAP_SYNC,
-    PIPE_ITEM_TYPE_PIXMAP_RESET,
-    PIPE_ITEM_TYPE_INVAL_PALETTE_CACHE,
-    PIPE_ITEM_TYPE_CREATE_SURFACE,
-    PIPE_ITEM_TYPE_DESTROY_SURFACE,
-    PIPE_ITEM_TYPE_MONITORS_CONFIG,
-    PIPE_ITEM_TYPE_STREAM_ACTIVATE_REPORT,
-};
-
 #define MAX_LZ_ENCODERS MAX_CACHE_CLIENTS
 
 typedef struct SurfaceCreateItem {
@@ -403,14 +386,6 @@ struct DisplayChannel {
 #endif
 };
 
-typedef struct DrawablePipeItem {
-    RingItem base;  /* link for a list of pipe items held by Drawable */
-    PipeItem dpi_pipe_item; /* link for the client's pipe itself */
-    Drawable *drawable;
-    DisplayChannelClient *dcc;
-    uint8_t refs;
-} DrawablePipeItem;
-
 typedef struct _Drawable _Drawable;
 struct _Drawable {
     union {
@@ -589,7 +564,7 @@ static void red_draw_drawable(RedWorker *worker, Drawable *item);
 static void red_update_area(RedWorker *worker, const SpiceRect *area, int surface_id);
 static void red_update_area_till(RedWorker *worker, const SpiceRect *area, int surface_id,
                                  Drawable *last);
-static inline void release_drawable(RedWorker *worker, Drawable *item);
+static void red_worker_drawable_unref(RedWorker *worker, Drawable *drawable);
 static void red_display_release_stream(RedWorker *worker, StreamAgent *agent);
 static inline void red_detach_stream(RedWorker *worker, Stream *stream, int detach_sized);
 static void red_stop_stream(RedWorker *worker, Stream *stream);
@@ -640,20 +615,48 @@ static void red_push_monitors_config(DisplayChannelClient *dcc);
     SAFE_FOREACH(link, next, drawable, &(drawable)->glz_ring, glz, LINK_TO_GLZ(link))
 
 
-#define DCC_TO_WORKER(dcc) \
-    (SPICE_CONTAINEROF((dcc)->common.base.channel, CommonChannel, base)->worker)
-
 // TODO: replace with DCC_FOREACH when it is introduced
 #define WORKER_TO_DCC(worker) \
     (worker->display_channel ? SPICE_CONTAINEROF(worker->display_channel->common.base.rcc,\
                        DisplayChannelClient, common.base) : NULL)
 
-#define DCC_TO_DC(dcc) SPICE_CONTAINEROF((dcc)->common.base.channel,\
-                                         DisplayChannel, common.base)
 
-#define RCC_TO_DCC(rcc) SPICE_CONTAINEROF((rcc), DisplayChannelClient, common.base)
-#define RCC_TO_CCC(rcc) SPICE_CONTAINEROF((rcc), CursorChannelClient, common.base)
+/* fixme: move to display channel */
+DrawablePipeItem *drawable_pipe_item_new(DisplayChannelClient *dcc,
+                                         Drawable *drawable)
+{
+    DrawablePipeItem *dpi;
 
+    dpi = spice_malloc0(sizeof(*dpi));
+    dpi->drawable = drawable;
+    dpi->dcc = dcc;
+    ring_item_init(&dpi->base);
+    ring_add(&drawable->pipes, &dpi->base);
+    red_channel_pipe_item_init(dcc->common.base.channel, &dpi->dpi_pipe_item, PIPE_ITEM_TYPE_DRAW);
+    dpi->refs++;
+    drawable->refs++;
+    return dpi;
+}
+
+DrawablePipeItem *drawable_pipe_item_ref(DrawablePipeItem *dpi)
+{
+    dpi->refs++;
+    return dpi;
+}
+
+void drawable_pipe_item_unref(DrawablePipeItem *dpi)
+{
+    RedWorker *worker = DCC_TO_WORKER(dpi->dcc);
+
+    if (--dpi->refs) {
+        return;
+    }
+
+    spice_warn_if_fail(!ring_item_is_linked(&dpi->dpi_pipe_item.link));
+    spice_warn_if_fail(!ring_item_is_linked(&dpi->base));
+    red_worker_drawable_unref(worker, dpi->drawable);
+    free(dpi);
+}
 
 
 #ifdef COMPRESS_STAT
@@ -865,49 +868,12 @@ static int cursor_is_connected(RedWorker *worker)
         red_channel_is_connected(RED_CHANNEL(worker->cursor_channel));
 }
 
-static void put_drawable_pipe_item(DrawablePipeItem *dpi)
-{
-    RedWorker *worker = DCC_TO_WORKER(dpi->dcc);
-
-    if (--dpi->refs) {
-        return;
-    }
-
-    spice_assert(!ring_item_is_linked(&dpi->dpi_pipe_item.link));
-    spice_assert(!ring_item_is_linked(&dpi->base));
-    release_drawable(worker, dpi->drawable);
-    free(dpi);
-}
-
-static inline DrawablePipeItem *get_drawable_pipe_item(DisplayChannelClient *dcc,
-                                                       Drawable *drawable)
-{
-    DrawablePipeItem *dpi;
-
-    dpi = spice_malloc0(sizeof(*dpi));
-    dpi->drawable = drawable;
-    dpi->dcc = dcc;
-    ring_item_init(&dpi->base);
-    ring_add(&drawable->pipes, &dpi->base);
-    red_channel_pipe_item_init(dcc->common.base.channel, &dpi->dpi_pipe_item, PIPE_ITEM_TYPE_DRAW);
-    dpi->refs++;
-    drawable->refs++;
-    return dpi;
-}
-
-static inline DrawablePipeItem *ref_drawable_pipe_item(DrawablePipeItem *dpi)
-{
-    spice_assert(dpi->drawable);
-    dpi->refs++;
-    return dpi;
-}
-
 static inline void red_pipe_add_drawable(DisplayChannelClient *dcc, Drawable *drawable)
 {
     DrawablePipeItem *dpi;
 
     red_handle_drawable_surfaces_client_synced(dcc, drawable);
-    dpi = get_drawable_pipe_item(dcc, drawable);
+    dpi = drawable_pipe_item_new(dcc, drawable);
     red_channel_client_pipe_add(&dcc->common.base, &dpi->dpi_pipe_item);
 }
 
@@ -930,7 +896,7 @@ static inline void red_pipe_add_drawable_to_tail(DisplayChannelClient *dcc, Draw
         return;
     }
     red_handle_drawable_surfaces_client_synced(dcc, drawable);
-    dpi = get_drawable_pipe_item(dcc, drawable);
+    dpi = drawable_pipe_item_new(dcc, drawable);
     red_channel_client_pipe_add_tail(&dcc->common.base, &dpi->dpi_pipe_item);
 }
 
@@ -946,7 +912,7 @@ static inline void red_pipes_add_drawable_after(RedWorker *worker,
         num_other_linked++;
         dcc = dpi_pos_after->dcc;
         red_handle_drawable_surfaces_client_synced(dcc, drawable);
-        dpi = get_drawable_pipe_item(dcc, drawable);
+        dpi = drawable_pipe_item_new(dcc, drawable);
         red_channel_client_pipe_add_after(&dcc->common.base, &dpi->dpi_pipe_item,
                                           &dpi_pos_after->dpi_pipe_item);
     }
@@ -1025,11 +991,12 @@ static void release_image_item(ImageItem *item)
 
 static void release_upgrade_item(RedWorker* worker, UpgradeItem *item)
 {
-    if (!--item->refs) {
-        release_drawable(worker, item->drawable);
-        free(item->rects);
-        free(item);
-    }
+    if (--item->refs)
+        return;
+
+    red_worker_drawable_unref(worker, item->drawable);
+    free(item->rects);
+    free(item);
 }
 
 static uint8_t *common_alloc_recv_buf(RedChannelClient *rcc, uint16_t type, uint32_t size)
@@ -1222,31 +1189,32 @@ static void remove_drawable_dependencies(RedWorker *worker, Drawable *drawable)
     }
 }
 
-static inline void release_drawable(RedWorker *worker, Drawable *drawable)
+static void red_worker_drawable_unref(RedWorker *worker, Drawable *drawable)
 {
     RingItem *item, *next;
 
-    if (!--drawable->refs) {
-        spice_assert(!drawable->tree_item.shadow);
-        spice_assert(ring_is_empty(&drawable->pipes));
+    if (--drawable->refs)
+        return;
 
-        if (drawable->stream) {
-            red_detach_stream(worker, drawable->stream, TRUE);
-        }
-        region_destroy(&drawable->tree_item.base.rgn);
+    spice_return_if_fail(!drawable->tree_item.shadow);
+    spice_return_if_fail(ring_is_empty(&drawable->pipes));
+
+    if (drawable->stream) {
+        red_detach_stream(worker, drawable->stream, TRUE);
+    }
+    region_destroy(&drawable->tree_item.base.rgn);
 
-        remove_drawable_dependencies(worker, drawable);
-        red_dec_surfaces_drawable_dependencies(worker, drawable);
-        red_destroy_surface(worker, drawable->surface_id);
+    remove_drawable_dependencies(worker, drawable);
+    red_dec_surfaces_drawable_dependencies(worker, drawable);
+    red_destroy_surface(worker, drawable->surface_id);
 
-        RING_FOREACH_SAFE(item, next, &drawable->glz_ring) {
-            SPICE_CONTAINEROF(item, RedGlzDrawable, drawable_link)->drawable = NULL;
-            ring_remove(item);
-        }
-        put_red_drawable(worker, drawable->red_drawable, drawable->group_id);
-        free_drawable(worker, drawable);
-        worker->drawable_count--;
+    RING_FOREACH_SAFE(item, next, &drawable->glz_ring) {
+        SPICE_CONTAINEROF(item, RedGlzDrawable, drawable_link)->drawable = NULL;
+        ring_remove(item);
     }
+    put_red_drawable(worker, drawable->red_drawable, drawable->group_id);
+    free_drawable(worker, drawable);
+    worker->drawable_count--;
 }
 
 static inline void remove_shadow(RedWorker *worker, DrawItem *item)
@@ -1339,7 +1307,7 @@ static inline void current_remove_drawable(RedWorker *worker, Drawable *item)
     ring_remove(&item->tree_item.base.siblings_link);
     ring_remove(&item->list_link);
     ring_remove(&item->surface_list_link);
-    release_drawable(worker, item);
+    red_worker_drawable_unref(worker, item);
     worker->current_size--;
 }
 
@@ -2747,7 +2715,7 @@ static inline int red_current_add_equal(RedWorker *worker, DrawItem *item, TreeI
             red_pipes_add_drawable(worker, drawable);
         }
         red_pipes_remove_drawable(other_drawable);
-        release_drawable(worker, other_drawable);
+        red_worker_drawable_unref(worker, other_drawable);
         return TRUE;
     }
 
@@ -2790,7 +2758,7 @@ static inline int red_current_add_equal(RedWorker *worker, DrawItem *item, TreeI
             /* not sending other_drawable where possible */
             red_pipes_remove_drawable(other_drawable);
 
-            release_drawable(worker, other_drawable);
+            red_worker_drawable_unref(worker, other_drawable);
             return TRUE;
         }
         break;
@@ -3466,7 +3434,7 @@ static gboolean red_process_draw(RedWorker *worker, QXLCommandExt *ext_cmd)
 
 end:
     if (drawable != NULL)
-        release_drawable(worker, drawable);
+        red_worker_drawable_unref(worker, drawable);
     if (red_drawable != NULL)
         put_red_drawable(worker, red_drawable, ext_cmd->group_id);
     return success;
@@ -3858,7 +3826,7 @@ static void red_update_area_till(RedWorker *worker, const SpiceRect *area, int s
            that red_update_area is called for, Otherwise, 'now' would have already been rendered.
            See the call for red_handle_depends_on_target_surface in red_process_draw */
         red_draw_drawable(worker, now);
-        release_drawable(worker, now);
+        red_worker_drawable_unref(worker, now);
     } while (now != surface_last);
     validate_area(worker, area, surface_id);
 }
@@ -3911,7 +3879,7 @@ static void red_update_area(RedWorker *worker, const SpiceRect *area, int surfac
         current_remove_drawable(worker, now);
         container_cleanup(worker, container);
         red_draw_drawable(worker, now);
-        release_drawable(worker, now);
+        red_worker_drawable_unref(worker, now);
     } while (now != last);
     validate_area(worker, area, surface_id);
 }
@@ -9098,7 +9066,7 @@ static void display_channel_hold_pipe_item(RedChannelClient *rcc, PipeItem *item
     spice_assert(item);
     switch (item->type) {
     case PIPE_ITEM_TYPE_DRAW:
-        ref_drawable_pipe_item(SPICE_CONTAINEROF(item, DrawablePipeItem, dpi_pipe_item));
+        drawable_pipe_item_ref(SPICE_CONTAINEROF(item, DrawablePipeItem, dpi_pipe_item));
         break;
     case PIPE_ITEM_TYPE_STREAM_CLIP:
         ((StreamClipItem *)item)->refs++;
@@ -9121,7 +9089,7 @@ static void display_channel_client_release_item_after_push(DisplayChannelClient
 
     switch (item->type) {
     case PIPE_ITEM_TYPE_DRAW:
-        put_drawable_pipe_item(SPICE_CONTAINEROF(item, DrawablePipeItem, dpi_pipe_item));
+        drawable_pipe_item_unref(SPICE_CONTAINEROF(item, DrawablePipeItem, dpi_pipe_item));
         break;
     case PIPE_ITEM_TYPE_STREAM_CLIP:
         red_display_release_stream_clip(worker, (StreamClipItem *)item);
@@ -9158,7 +9126,7 @@ static void display_channel_client_release_item_before_push(DisplayChannelClient
     case PIPE_ITEM_TYPE_DRAW: {
         DrawablePipeItem *dpi = SPICE_CONTAINEROF(item, DrawablePipeItem, dpi_pipe_item);
         ring_remove(&dpi->base);
-        put_drawable_pipe_item(dpi);
+        drawable_pipe_item_unref(dpi);
         break;
     }
     case PIPE_ITEM_TYPE_STREAM_CREATE: {
diff --git a/server/tree.h b/server/tree.h
index 9ee6007..baba40a 100644
--- a/server/tree.h
+++ b/server/tree.h
@@ -73,40 +73,6 @@ struct DrawItem {
 #define IS_DRAW_ITEM(item) ((item)->type == TREE_ITEM_TYPE_DRAWABLE)
 #define DRAW_ITEM(item) ((DrawItem*)(item))
 
-typedef struct DependItem {
-    Drawable *drawable;
-    RingItem ring_item;
-} DependItem;
-
-struct Drawable {
-    uint8_t refs;
-    RingItem surface_list_link;
-    RingItem list_link;
-    DrawItem tree_item;
-    Ring pipes;
-    PipeItem *pipe_item_rest;
-    uint32_t size_pipe_item_rest;
-    RedDrawable *red_drawable;
-
-    Ring glz_ring;
-
-    red_time_t creation_time;
-    int frames_count;
-    int gradual_frames_count;
-    int last_gradual_frame;
-    Stream *stream;
-    Stream *sized_stream;
-    int streamable;
-    BitmapGradualType copy_bitmap_graduality;
-    uint32_t group_id;
-    DependItem depend_items[3];
-
-    int surface_id;
-    int surfaces_dest[3];
-
-    uint32_t process_commands_generation;
-};
-
 void       tree_item_dump                           (TreeItem *item);
 Shadow*    shadow_new                               (DrawItem *item, const SpicePoint *delta);
 Container* container_new                            (DrawItem *item);
-- 
2.4.3

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